Accessory mounting for internalcombustion engines



April 24, 1951 B. G. VALENTINE 2,549,948

ACCESSORY MOUNTING FOR INTERNAL-COMBUSTION ENGINES Filed Aug. 9, 1948 IM INVENTOR. a. G. VALEN'HNE ATTORNEYS April 24, 1951 B. a. VALENTINE 8ACCESSORY MOUNTING FOR INTERNAL-COMBUSTION ENGINES 4 Sheets-Sheet 2Filed Aug. 9; 1948 w mi B. G. VALENTlNE ACCESSORY MOUNTING FORINTERNAL-COMBUSTiQN ENGINES April 24,

Filed Aug. 9, 1948 B. G. VALENTINE April 24, 1951 ACCESSORY MOUNTING FORINTERNAL-COMBUSTION ENGINES 4' Sheets-Sheet 4 Filed Aug. 9, 1948INVENTOR. B. G. VALENTINE ATTORNEYS Patented Apr. 24, 1951 ACCESSORYMOUNTING FOR INTERNAL- COMBUSTION ENGINES Bertram G. Valentine, Kenmore,N. Y., assignor to Deere Manufacturing Co., Dubuque, Iowa,

a corporation of Iowa Application August 9, 1948, Serial No. 43,190

18 Claims.

This invention relates to an internal combustion engine; moreparticularly the invention relates to a solid fuel injection engine andto improved means for mounting the fuel injection pump for such engine.Still further, the invention relates to the mounting and arrangement ofengine parts and sealing means for a control element extending betweensaid parts.

The invention is directed primarily toward improving the generalstructure of an engine of the type shown in the U. S. patent to McCray1,919,069, wherein there is shown an engine of the two-cylinder type inwhich the cylinders are horizontal and extend longitudinally in atractor body of which the engine forms a part. According to the presentinvention, it is a feature to provide a compartment on top of the maincylinder casting of the engine and to removably mount fuel injectionpumps on a support in this compartment. It is an important object of theinvention to provide the fuel injection pumps as part of a unitincluding a carrier member to which the pumps are secured, thearrangement being such that the unit may be tested apart from the engineand then installed in the engine without disturbing the adjustment madeduring the testing operation. In this respect, another feature of theinvention resides in the interconnection of the fuel pump by means of acontrol element and to arrange the supporting means in the compartmentin such manner that the installation of the fuel pump unit can beaccomplished without disturbing any adjustment made in the controlelement, the supporting means in a preferred form of the inventionhaving a notch or opening for receiving the control element.

Other features of the invention reside in the detailed arrangement andcombination of parts set forth in the following description and claimsand illustrated in the accompanying sheets of drawings, together withother features that will readily occur to those versed in the art.

In the drawings:

Figure 1 is a perspective view of the front and left side portion of atractor of the general type referred to;

Figure 2 is an enlarged fragmentary plan view of the compartment andrelated engine structure, shown in connection with the mounting of afuel pump unit, the cover of the compartment having been removed;

Figure 3 is a transverse sectional view taken substantially on the line5% of Figure 2;

Figure i is a longitudinal sectional View taken on the line 4-4 ofFigure 2;

Figure 5 is a detail view of the engine part that includes the unitcompartment;

Figure 6 is a transverse sectional view taken substantially on the line5-4? of Figure 2; and

Figure 7 is an enlarged fragmentary sectional View showing the sealingmeans.

Although, as stated above, the invention covers structural detailsdesigned primarily for an engine of the type in which the cylinders arehorizontal, it is not intended that the invention be necessarily limitedin all its phases to such engine. Likewise, the structural details neednot be arranged in the positions illustrated and described nor need theyabsolutely follow the general proportions of the parts illustrated,reference in the specification and claims to the parts as extending incertain directions being only illustrative and for convenience.

In the illustration of the forward portion of a tractor in Figure l, thetractor is shown as including a forward body part It carried on atransverse wheeled axle II. The forward part of the body includes anupstanding radiator grille or enclosure structure 62 from the upperportion ofv which a hood !3 extends rearwardly. The internal combustionengine is of the solid fuel injection type and is designated generallyby the numeral !5, being carriedv by the tractor main case asillustrated in the patent referred to above. Such main case isrepresented generally by the numeral it here. The engine includes a maincasting I! in which two horizontal cylinders (not shown) are formed. Tothe forward end of the cylinder casting H is secured a cylinder head is.The particular engine shown is of the type having overhead valves (notshown) and the cover therefor is illustrated at HQ.

Since the cylinders of the engine are horizontal and extend parallel tothe general longitudinal center line of the tractor, the crankshaftthereof (not shown) extends transverse to the tractor and at one sidethereof the engine is provided with a flywheel and timing gear mechanism(not shown) enclosed in a housing designated generally by the numeral28, this housing providing an engine part rigidly secured to the enginepart including the cylinder casting ll. The housing 28 includes ingeneral an auxiliary forwardly extending housing part 2| which has aninner wall 22 (see Figures 2 and 4) spaced laterally outwardly or to theleft from an upper wall portion of the engine, part or casting H. Thedetailed relationship between the engine parts will be described below.

From the descriptionvthus far, it will be seen that the main case I6serves to carry the engine parts I! and 2B. The cylinder casting or partll has a flange which is secured by a plurality of studs and nuts 26 toa forward face of the main case Hi. The housing or part 2i! has aprimary housing! part- 21 provided generally; with a peripheral flange28 which is secured to theleft side of the main case I6 as by aplurality of cap screws 29. The housing parts 29 and 2? are se curedtogether as by a plurality. of capscrews. 3B. The upper part of thehousing portion-21 is.-

normally closed by a cover 3|. The general driving structure containedwithin the housingparts 2| and 2? is illustrated int-heMc'Gray-'patentre'-- ferred to above and has not been shown here.Briefly, this driving mechanism includesgearing driven from thecrankshaft (not shown), part of which gearing constitutes timingge'eir'nm'dha nism for driving theengine cam shaft, designateu 9:15 32in Figure 3, and a part of. which drives speed-controlling mechanismsuch as a conventional governor (not shown? contained in the housingpart 2 I. In=Figure 2 a portion of the cover 31 has'been broken away toexpose'a con trol arm 33 in the governor housing, detailed reference towhich will be-ma'de below;

The'upper' portion of the cylinder casting H is compartment is definedat 35 by front and rear walls 3'fi'and 3-7, a right side or-end'wall 38'anda left side or end wall 39. The compartment includes a generally flathorizontal bottom 4%; and the walls 36, 3?, 38' and 39 delineate agenerally rectangular opening 41 at the top of the compartment. Thecompartment is normally closed by a removable cover 42;

As best shown in Figures 2 and 5, the compartment 35 is separated intoright and left hand open areas or pockets 43 and 44 by meansof avertical web 45 that" extendsacross the compartment between the frontand rear Walls 38 and 31. As'wiu be brought out below, the web comprisesmain supporting structurefor a fuel pump unit.- For this purpose; theweb includes a pair of mounting portions 46' and 47, each of which has asubstantially flat upper mounting surface. The" mounting portions orpads areseparated' by a notch 48 which communicates the two' pockets orareas 43 and 44 and which opens or is directed upwardly as best shown inFigures 5 and As best shown in Figure 5-, the mounting pad- 45 isdrilled vertically to provide a passage 49 for lubricating oil. As shownin Figure" 6, this pas-- sage communicates with a horizontal passage 53which opens outwardly at the rear of the compartment 35 through the rearwall 31. Lubri eating oil, or any other suitable fluid, may be suppliedthrough the passages 45' and 5s by any appropriate means, norepresentative form of which is shown here, since the details of thesource of supply of oil are not important to the present invention.

As shownin Figure 5, the mounting portion or pad 41 is' drilledvertically to provide a passage 5| which has its lower end incommunication with a horizontal transverse passage 52 formed in an upperportion of the casting ll between the main cylinder and the compartment35 (Figure 6). The passages 5i and 52 are for the supply of fuel to thefuel pumps to be hereinafter described. The passage 52 opens to the lefthand side wall 38, as at 53, and may be connected to any suitable fuelsupply means, such as a fuel transfer ump, the arrangement of which isnot shown here, since such pumps are generally conventional.

It will be noted that each mounting portion or pad 46, 4? is lyinglengthwise of the compartment to provide a suitable support for adetachable carriermember, indicated generally by the numeral 55. Thismember is disposed-- horizontally across the web 45 and has a central orintermediate undersurface providing a mounting portion 56 which iscomplementary to and rests upon. the mounting surfaces of the mountingpads 45 and 4?. The mounting pads are prov idedirespectively with dowels5'! and 58 which are respectively received in vertical bores 53 and' 6Edrilledupwardly in the carrier member 55. (Figures. 5. and 6). Thecarrier member 55 is detachably secured to the web and its assoelatedmounting portions 4s and M by a plurality of cap screws 6% which arereceived by tapped bores 62in themounting pads as and as. The number ofcap screwsis relatively small, preferably four, so that the carriermember will be appropriately secured to the mounting pads 45 and 41 andyet may be readily removed therefrom.

As best shown in Figures 2 and 6, the carrier member 55 is generally ofelongated conformation and has a pair of passages 55 and 55 runninglengthwise therein. The passage 65, as best shownin Figure 4, is made upof a pair of angularly related bores opening. respectively at oppositeends of the carrier member. The open ends-of the bores are plugged, asat 61-. The passage 65: is similarly formed and its open ends areplugged at B8. The intermediate portion of the carrier. member 55 isprovided with a vertical. passage or port 89- which intersects thepassage 65 and. which isexposed or open to the under mounting surface 55of the member 55.

The member 55 is provided with a second sage: or port ll! which isvertical and which intersects the passage 68, the passage it, like thepassage '39, being exposed or open to the under mounting surface 56.When the member 55.- is mounted on the web 45, the ports or passages '39and "it are respectively in communication with the vertical passages litand ill inthe web. This relationship isbest shownin Figure 6, which alsoshow-s that the notch 38 is between the passages 49 and 5 i.

As best shown in Figures 2 and 4, the carrier member 55 extendsrespectively at opposite sides of the web to provide a pair of mountingportions 15 and 16-, each of which is in the form of a flatundersurface. A pair of fuel injection pumps H and 13 is part of theunit including the carrier member 55, the pumps being respectivelymounted on the mounting portions 15 and 16 of the carrier member, sothat one pump is disposed in each area or pocket 43, 44. These pumps maybe of any suitable construction. Those shown are of a well known typeand form no part of the present invention in and of themselves.Therefore, the components thereof have been illustrated and will bedescribed only to the extent that they are related to the invention.

As best shown in Figure 4, the pump 7! is removably but rigidly securedto the under mounting portion of the carrier member 55 by a plurality ofcap screws 19. The pump 18 is likewise secured to the other mountingportion 16 of the member 55 by means of a plurality of cap screws Bil.As best shown in Figure 3, the pump 18 is provided with a fuel chamber8! and with a lubricating oil chamber .82, At the proximate end portionI6 of the member 55, the fuel passage 66 intersects a vertical passage83 from which a tubular connection 84 is made to the fuel chamber 8|. Atthe same end of the member 55, the lubricating oil passage 65 intersectsa vertical passage 85 from which a tubular connection 86 is made to thelubricant chamber 82 in the pump I8. The fuel pumps being identical, thepump 11 is provided with fuel and lubricant chambers (not shown) similarto the chambers BI and 82 described in connection with the pump 18. Forthis purpose, the opposite end portion I5 of the carrier member 55 isprovided with vertical passages or bores 81 and 88 respectivelyintersecting the longitudinal passages 86 and 65. From the descriptionthus far it will be seen that the pumps are lubricated by means oflubricant supplied thereto by means of the passages and ports 50, 49,69, B5, 85and 88. Likewise, the pumps are supplied with fuel through thepassages and ports 52, 5|, I0, 65, and 83 and 81. The pumps are providedrespectively with supply lines 90 and 9| which may be connected in anysuitable manner to appropriate injection nozzles (not shown) associatedwith the cylinders (not shown) in the engine casting. The supply lines90 and 9| are respectively detachably connected by fittings 92 and 93 tothe fuel pumps TI and 18 so that the lines may be readily removed fromthe pumps.

As best shown in Figure 3, the illustration of the 3 pump I8 representsthe structure of each pump as including a pump plunger 94 operated by apush member 95 to which reciprocatory motion is imparted by the camshaft 32, an arrangement which is largely conventional.

In the present case, the particular type of pump used includes means bywhich the quantity of fuel supplied to the nozzles in the cylinders maybe controlled or metered. Each pump is provided with a conventionaladjusting pinion 96, the angular position of which regulates the supplyof fuel to the nozzle, as will be understood by those versed in the art.The adjustment of the pinions 96 is accomplished simultaneously by meansoi a control element, designated generally by the numeral 91 andcomprising a plurality of coaxial members connected together inend-to-end relationship. Two of the components of the control elementcomprise operating racks 98 detachably interconnected by an adjustablepart 99, provision for adjustment being made at I00. As will beunderstood by those versed in the art, the pumps must be balanced in theproper manner to insure the efficient operation of the engine. As willbe hereinafter brought out, the adjustment of the racks 98 is difficultto achieve while the fuel pump unit is mounted in place, particularly inthe structural relationship illustrated.

The direction of movement of the control rack element 91 is to the rightin Figure 4 when it is desired to increase the supply of fuel to theengine. The left hand end of the element 91 is provided with a stop Iwhich may abut a shoulder I02 provided at the left side of the left handfuel injection pump 11, this stop being provided for the purpose ofdetermining the rated full load of the engine.

When the fuel pump unit is mounted in place on the web 45 the fuelcontrol element 91 extends transversely across the web and through thenotch 48 therein. Since the notch opens upwardly, removal of the unitfrom the compartment may be accomplished without interference betweenthe element 91 and any part of the web.

The intermediate member 99 between the rack members 98 extends throughan apertured.

bracket and is surrounded by a light spring I04 for the purpose ofeliminating looseness in the control element. The bracket is secured toan under part of the intermediate portion of the carrier member 55 as bymeans of a pair of cap screws I05. The bracket and spring thus becomepart of the fuel pump and carrier unit.

As stated above, the compartment 35 is normally closed by the removablecover 42. The removable securing of the cover 42 to the compartment ispreferably accomplished by means of a pair of studs I06 which arethreaded into tapped bores I 01 in the web 45 and which pass upwardlythrough appropriate openings in the cover 42 and which receive acornnuts I08.

Adjustment or regulation of the fuel supply by means of the pinions 98and racks 93 is under control of the governor mechanism (not shown)contained within the housing 3| and having the control arm 33 previouslydescribed. The control connection between the arm 33 and the controlelement 91 is preferably accomplished by means including a short shaftor rod IIIJ connected at one end as at I I I to the control arm 33 anddetachably connected at its other end, as at I I2, to the right hand endof the right hand rack 98. The connection II2 preferably includesreadily disconnectible means, such as a collar I I3 and snap ring H5.The details have not been particularly illustrated, since any otherappropriate connection may be utilized. It will be understood that thecontrol arm 38 is movable in response to variations in engine speed toshift the rod or shaft I I0, and hence the control element 9?, toregulate the pumps TI and Ii; in accordance with the fuel requirementsof the engine.

The right hand end wall 39 of the compartment structure is provided withan opening H5 through which the shaft I I9 extends. The inner wall 22 ofthe casing or housing ZI has an opening H6 through which the shaft H9loosely extends. As previously described, the relationship between theengine parts I! and 2!} is such that the casing or housing portion 2I isspaced from the proximate side (39) of the cylinder casting or part I'I.Because of variations in manufacture, particularly with respect to thebolt holes that receive the cap screws 29, it is not always possible toobtain perfect axial alignment between the openings H5 and H5respectively in the walls 39 and 22. Such variations in manufacture maybe compensated to some extent by making the opening IIS slightly largerso that there will be an appreciable amount of looseness between theopening and the shaft H0. On the other hand, however, the increased sizeof the opening II 6 over the outside diameter of the shaft I I9 meansthat this opening must be sealed against the entrance of dirt and theescape of lubricant. The particular sealing means shown here forms thesubject matter of assignees c0- pending application, Serial No. 53,318,filed Octoher '7, 1948, but will be described here briefly as arepresentative means for sealing the openings in the engine parts IT and2!. The opening H5 about the shaft I I8 is preferably sealed by means ofa bushing or member II! in the form of a sleeve having a portion whichtightly fits the opening H5 and which receives the shaft H5 withsufiicient tolerance to provide for axial shifting of the shaft iii?therein. The sleeve H1 is cylindrical and extends toward the wall 22 ofthe casing or housing 2|, preferably terminating ing to the radial face52! of the collar.

shor 5 the l: and. al w n e. ear nce pa He at this, point (Fi ure.7)..Ijhis clearance is provided tofaccommod ate. variations in manufactureaffecting the. spacing between the walls 22.; and 39.

The wall 22 is provided with a finished face H9 radially disposed, asrespects the of the shaft H0 and facing the outside of the wall 39. A,circular one-piece collar iZii surrounds. the portion of the sleeve Illthat is proximate to the opening M6, the inner annular periphery of thecollar closely but slid-ably fitting the outer cylindrical, surface; ofthe. sleeve. The collar has a radial face. I 2 I. which contacts or liesagainst the radial face M9, on the wall 22. In the preferredillustration of the invention, a compression spring l23 provides meansacting against the wall 35 and against the collar 52$ for urging thecollar against the wall 22 so that the radial faces 52! and H9. are incontact. The seal structure thus far described accommodates variationsin manufacture that may alfect the spacing between the walls 22 and 39,since the collar 12E; may slide 7 the radial face H9. are relativelydisplaceable at times in directions normal to the axis of the shaft IIt, it being remembered that the opening l 16 is quite a bit larger thanthe outside diameter of the shaft Hi].

In order to complete a seal between the interior and exterior of thehousing or casing 2%, there is provided a first seal which includes anannular groove I24 in the outer periphery of the portion of the sleeveii? that is proximate to the opening NB. This groove is preferablyrectangular in cross section, as illustrated. Within this groove isprovided a seal ring i125. composed of resilient material and having anormally circular cross section. Such ring is. known in the art as Oring. As will be readily understood by those skilled in the art, the.ring 525 is normally confined in the groove :24 by the inner peripheryof the collar i211 so that the ring has a cross section that is slightlyoval, the arrangement being such that the ring may roll about a circularaxis in the event of relative axial movement between the sleeve Ill andcollar [20. A further portion of the seal comprises a second annulargroove. lit, this one being formed in the collar IEQ. and open- Thisgroove, like the groove I251, is generally rectangular in cross sectionand receives a circular ring 12? identical, except for size, to the ringi525. The installation of the ring 22? in the groove I26 is such thatthe ring may slide or roll in the event of relative movement between thecollar 2s and wall in any direction normal to the axis of the shaft Mil.Consequently, not only do the seals [Eta-J25 and lZfi-lll accommodatevariations in manufacture, but these seals also serve to perform asealing function of the event of relative movement between the engineparts I? and 2:} because of vibrations inherent in the operation of theengine.

The arrangement of the fuel pumps If and E8 on the carrier member 55 asa complete unit together with the control element El enables the unit tobe tested apart from the engine. For this purpose, the entire unit maybe mounted on a test support having generally the characteristics of thesupporting structure provided by the web 6.5 and its mounting pads 45and ll. Such test structure will include passages similar. to thoseformed in the supporting structure in the com rar in n t a om l e t ma emade on the fuel pump unit apart from the engine. Such test Will includethe determination of the operating efliciencyv of the pumps, thebalancing thereof by adjustment of the components of the control element9?, the determination that the pumps are properly supplied. with fueland lubricant, and other tests incidental to the operating efficiency ofthe pumps. It will also be understood' that, during the testingoperation, the pumps, ll and I8 are-connected to-test lines in place ofthe lines 99.. and 55. Likewise, the right hand end of the right handrack 93 isconnected to a test control rather than to the control, shaftMe, which is obvious. 7

After the test has been completed, the entire unit may be installed inplace On the. web 45, the under mounting surface 55 of the member 55 being received by. the mounting pads 46 and 41 after which the carriermember may be rigidly secured to themounting pads by means of thecapscrews El, and the. connection may be accomplished at I [-2 between theright hand rack 98 and the inner end of theshaft I ll]withinthecompartment 3.5 at the same time, thelines and 9| will beconnected to the, fuel pumps ll and 18 respectively, by means of thefittings E12. and 9.3, respectively. The cover 43 may be. installed andsecured place. by means of the acorn nuts [.98.

It will beseen that in the. event that the pumps 11; and it requireservicing after operation, the entire. unit may be just as readilyremoved from the compartment 35,. Since the notched structure of the web4.5 readily accommodates both the control element. ill and thesupporting structure I03, there will be. no interference between theseparts and the web during installation and removal of the unit.

As previously stated, the disclosure herein. isdirected to what ispresently considered the most desirable form that the invention mayassume in an engine of the type referred to. It will be understood, ofcourse, that the invention is susceptible to many modifications andalterations, all of which may be accomplished without departing from thespirit and scope of the invention as defined in the appended claims. 7

What is claimed is: t

1. In an internal-combustion engine having a main engine castingi meansrigidly mounted on said casting and providing a compartment having anopen top through which access may be had to the compartment; meanswithin the compartment providing an upstanding support substantiallycentrally of the compartment and generally separating the compartmentinto a pair of similar pockets; means in the support providing agenerally horizontal opening through the support communicating thecompartment pockets; means providing in the support a generally verticalfuel passage at one side of said opening and a generally verticallubricant passage at the other side of said opening, saidsupport havingtop mounting surfaces and said passages opening upwardly respectively tosaid surfaces; 2. carrier member disposed generally horizontally acrossthe support and having a central undersurface complementary to themounting surfaces on the support and a pair of end portions respectivelyoverhanging the support and above the compartment pockets; meansdetachably mounting the carrier member on the support; means in thecarrier member including a fuel passage and a lubricant passage openingat the undersurface of the member and respectively communicating withthe passages in the support, said member passages extending into themember end portions; a pair of fuel pumps carried respectively by saidmember end portions in the compartment pockets, each pump including afuel chamber, a lubricant chamber, and a controllable part, said fueland lubricant chambers in the pumps being respectively connected to thefuel and lubricant passages in the carrier member; a control elementconnected to the controllable parts of the fuel pumps and extendingthrough the opening in the support; and a cover closing saidcompartment.

2. In an internal-combustion engine having a main engine casting: meansrigidly mounted on said casting and providing a compartment having anopen top through which access may be had to the compartment; meanswithin the compartment providing an upstanding support substantiallycentrally of the compartment and generally separating the compartmentinto a pair of similar pockets; means in the support providing alubricant passage and a fuel passage; a carrier member disposedgenerally horizontally across the support and detachably mounted at acentral underside portion thereof on the upper portion of the supportand having a pair of end portions respectively overhanging at oppositesides of the support and respectively above the aforesaid pockets; apair of fuel pumps detachably carried by the carrier member, one on andbelow each end portion of the carrier member so as to be housed in theproximate pocket; means in the carrier member including separate fueland lubricant passages communicating with the fuel pumps and opening atthe under portion of the carrier member by means of which said member ismounted on the support, said passages in the carrier member respectivelycommunicating with the passages in the support; and a cover for closingthe compartment.

3. In an internal-combustion engine having a main engine casting: meansrigidly mounted on said casting and providing a compartment having anopen top through which access may be had to the compartment; meanswithin the compartment providing an upstanding support substantiallycentrally of the compartment and generally separating the compartmentinto a pair of similar pockets; means in the support providing a fluidpassage; a carrier member disposed generally horizontally across thesupport and detachably mounted at a central portion thereof on thesupport and having a pair of end portions respectively overhanging atopposite sides of the support and respectively above the aforesaidpockets; a pair of fluid pumps detachably carried by the carrier member,one on and below each end portion of the carrier member so as to behoused in the proximate pocket; means providing fluid passages in thecarrier member communicating the fluid pumps with fluid passage in thesupport; and a cover for closing the compartment.

4. For use with an internal-combustion engine: a support providing agenerally rectangular compartment having substantially vertical end andside walls and a horizontal bottom wall, and including an opening at itstop delineated generally by upper portions of the end and side walls;means in the compartment including a generally vertical web extendingacross the compartment from one side wall to the other and substantiallymidway between the end walls, said web having a central notch thereinopening upwardly; means on the web providing a pair of upper mountingpads separated by the notch, each oad having a generally horizontalmounting surface; a carrier member disposed generally horizontallyacross the web and having undersurface portions resting on the mountingpad surfaces, and having end portions disposed respectively at each sideof the web; means providing an opening in one end wall of thecompartment generally aligned with the notch in the web; a pair of fuelpumps mounted respectively on the carrier member end portions, eachincluding a controllable part; a control element interconnecting saidparts and passing through said notch; a control member extending throughsaid end wall opening; means detachably interconnecting the controlmember and element within the compartment; means detachably securing thecarrier member to the mounting pads; and a cover for closing saidcompartment top opening.

5. The invention defined in claim 4, further characterized in that: theweb includes a fuel passage and a lubricant passage opening respectivelyto the mounting pad surfaces; and the carrier member includes fuel andlubricant passages communicating with fuel and lubricant chambers in thepumps and opening to the undersurfaces of said member for communicationrespectively with the fuel and lubricant passages in the web.

6. For use with an internal-combustion engine:

a support having wall portions defining a compartment having an openside closed by a removable cover; a mounting member arranged within thecompartment so that there is an open area in the compartment at eachside of the mounting member, said member having a notch openinggenerally toward the open side of the compartment; a carrier memberdetachably mounted on the mounting member within the compartment andhaving an end portion at each side of the mounting member fordisposition respectively in said open areas; a pair of fuel pumpscarried by the carrier member for disposition respectively in saidareas, each pump having a controllable part; and a control elementinterconnecting said controllable parts and extending through the notchin the mounting member; whereby, upon removal of the cover anddetachment of the carrier member from the mounting member, the carriermember, together with the fuel pumps and control element may be removedfrom the compartment as a unit through the open side of the compartment,said control element being moved outwardly of said notch.

'7. For use with an internal-combustion engine: a support having wallpOItions defining a compartment having an open side closed by aremovable cover; a mounting member arranged within the compartment sothat there is an open area in the compartment at each side of themounting member, said member having a notch opening generally toward theopen side of the compartment; a carrier member detachably mounted on themounting member within the compartment and having an end portion at eachside of the mounting member for disposition respectively in said openareas; a pair of fuel pumps carried by the carrier member fordisposition respectively in said areas, each pump having a controllablepart; a control element interconnecting said controllable parts andextending through the notch in the mounting member; means carried by awall portion for operating the control element; and

detachable means interconnecting the operating means and the controlelement; whereby, upon removal of the cover, the carrier member may bedetached from the mounting member and the control element may bedetached from the operating means for removal of the carrier member,fuel pumps and control element as a unit through the open side of thecompartment, said control element passing outwardly through said notch.

8. For a vehicle having an internal-combustion engine: a fuel pump andcarrier unit therefor, including a carrier member having a pair ofspaced apart carrier portions and an intermediate mounting portion, apair of fuel pumps rigidly secured to the carrier portions and includingcontrollable parts and a control element interconnecting said parts andextending across the mounting portion of the carrier member, each ofsaid'fuel pumps including a fluid chamber, and

said'carrier member including passage portions I intercommunicating saidchambers and having a fluid port exposed through its mounting portion; asupport adjacent the engine for said unit including a mounting portionto receive the mounting portion of the carrier member and a v notch toremovably receive the control element, said support having a fluidpassage exposed to its mounting portion and in communication with thefluid port of the carrier member when the unit is on the support, andmeans including the mounting portions of the carrier member and supportfor detachably mounting the unit on the sup port.

9. For an internal combustion engine; an accessory unit including acarrier member having a pair of accessory carrier portions and anintermediate mounting portion, a pair of accessories carriedrespectively by said carrier portions, each having a fluid chamber andan adjustable part, and an adjusting element interconnecting said partsand extending across the mounting portion, said carrier member havingfluid passage portions intercommunicating the accessory chambers and acommunicating fluid port opening to the mounting portion; a supportadjacent the engine for mounting said unit, including a mounting portionto receive the mounting portion of the carrier member and a notch'thatremovably receives the control element, said support having a fluid passage exposed to its mounting portion and in communication with the fluidport of the carrier member when the unit is on the support; and meansincluding the mounting portions of the carrier member and support fordetachably mounting the unit on the support.

10. In an internal-combustion engine having a main engine casting: meansrigidly mounted on said casting and providing a compartment having anopen top through which access may be had to the compartment; meanswithin the compartment providing an upstanding support substantiallycentrally of the compartment and generally separating the compartmentinto a pair of similar pockets; means providing in the support agenerally vertical fuel passage and a generall vertical lubricantpassage, said support having a top mounting surface and said passagesopening upwardly to said surface; a carrier member disposed generallyhorizontally across the support and having a central undersurfacecomplementary to the mounting surface on the support and a pair of endportions respectively overhanging the support and above the compartmentpockets; means detachably mounting the carrier member on the support;means in the carrier member including a fuel passage'an'd a lubricantpassage opening at the undrsurface "of the member and respectivelycommunicating'with'the passages in the support, said'memberpassagesextending into the member end portions; "a plurality of fuel pumpscarried by said member endportions in the compartment pockets, each pumpincluding a fuel chamber, a lubricant chamber, and acontrollable part,said fuel and lubricant chambers in the pumps being respectivelyconnected to the fuel and lubricant passages in the carrier member; acontrol element connected to the controllable parts of the fuel pumps;and a cover closing said compartment.

11. In an internal-combustion engine having a main engine part: meanscarried by said part providing a support having a mounting portion;means in the support providing a fluid passage opening to the mountingportion; a movable control member having a portion in proximity to thesupport; a carrier member removably mounted on the mounting portion ofthe support and including a fluid passage having a pair of communicatingportions, one of which opens'to'the fluid passage in the support'at themounting portion of the support; and a fluid pump carried by the carriermember and having a fluid chamber opening to the other fluid passageportion in the carrier member, and a "controllable part disconnectiblyconnected to theaforesaid movable part.

12. In an internal-combustion engine having a main engine part: meanscarried by said part providing a support having a mounting portion;means in the support providing a fluid passage opening to the mountingportion; 'a carrier member removably mounted on'the mounting portion ofthe support and including a fluid passage having a pair of communicatingportions, one of which opens to the fluid passage in the support at themounting portion or the support; and a fluid pump carried by the carriermember and having a fluid chamber opening to the other fluid passageportion in the carrier member.

13. In an internal-combustion engine having a main engine part: meanscarried by said partand providing a compartment having'walls includingrelated edge portions defining an access opening; a removable cover forclosing said opening; a support within the compartment including amounting portion facing the opening and within the cover when the coveris in place; a movable control member extendingthro'ugh one of thecompartment walls and into the compartment; means providing a fluidpassage in thesupport opening to the mounting'p'ortion; a carrier memberremovably mounted on the mounting. portion of the support within thecompartment and having a fluid passage therein including apassageportion opening to' the flnid passage in the support at said mounting.portion, and a -secondpassage portion spaced from' the first passag'eportion; and a fluid'pump carried by "the carrier member within'thecompartment and-including a control element disconnectibly connected tothe aforesaid control member and a fluid chamber opening to theaforesaid second fluid passage portion in the carrier member.

li. In an internal-combustion engine'having a main engine part: meanscarried by said part and providing a-compartment having walls includingrelated edge portions defining an access opening; a removable cover forclosing said opening; a support within the compartment including amounting portion facing the opening and with in the cover when the coveris in place; means providing a fluid passage in the support opening tothe mounting portion; a carrier member removably mounted on the mountingportion of the support within the compartment and having a fluid passagetherein including a passage portion opening to the fluid passage in thesupport at said mounting portion, and a second passage portion spacedfrom the first passage portion; and a fluid pump carried by the carriermember within the compartment and including a fluid chamber opening tothe aforesaid second fluid passage portion in the carrier member.

15. In an internal-combustion engine having an engine part: meanscarried by said part providing a support having a mounting portion;means providing a fluid conduit having a portion adjacent the support; acarrier member removably mounted on the mounting portion and havingfluid passage means including first and second separate passageportions, the first of which is connectibly and disconnectiblyassociated with the aforesaid conduit portion; and a fluid devicemounted on the carrier member and having fluidreceivable meansassociated with the second passage portion independently of the firstpassage portion.

16. In an internal-combustion engine having an engine part: meanscarried by said part providing a compartment having an access opening; aremovable cover for the opening; a support Within the compartment andhaving a mounting portion exposed when the cover is removed; meansproviding a fluid conduit having a portion within the compartment; acarrier member removably mounted on the mounting portion within thecompartment and having fluid passage means including first and secondseparate passage portions, the first of which is connectibly anddisconnectibly associated with the aforesaid conduit portion; and afluid device mounted on the carrier member within the compartment andhaving fluid-receivable means associated with 14 the second passageportion independently of the first passage portion.

17. In an internal-combustion engine having a main engine part: meanscarried by said part providing a support having a mounting portion; amovable control member having a portion spaced to one side of thesupport; a carrier member removably mounted on the mounting portion ofthe support and having a portion offset toward and in proximity to thecontrol element; and a fluid pump carried by the carrier member offsetportion and having a controllable part disconnectibly connected to theaforesaid movable part.

18. In an internal-combustion engine having a main engine part: meanscarried by said part and providing a compartment having walls includingrelated edge portions defining an access opening; a removable cover forclosing said opening; a support within the compartment including amounting portion proximate to and facing the opening and within thecover when the cover is in place; a movable control member extendingthrough one of the compartment walls and into the compartment and oiTsetfrom the mounting REFERENCES CITED The following references are ofrecord in the file of this patent:

UNITED STATES PATENTS Name Date Larson Apr. 10, 1923 Number

